I have been playing Fortnite since the beginning of the year and ever since the latest update of Fortnite (the update after season 5) I have been having some issues with game crashes and FPS drops in game.

On launching Fortnite a new window shows reading WARNING: Known issues with graphic driver (picture is attached). The message then goes on to say that I currently have Adrenalin 18.7.1 drivers installed and it recommends 18.7.1 (without Adrenalin). I have uninstalled my graphics drivers and reinstalled them, uninstalled Fortnite and reinstalled it but nothing works. My game is still crashing every match I join and my FPS have sharp drops from 144 down to 60 and even lower for a couple seconds. I have checked and not noticed any over heating.